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The most comprehensive history of the thermionic vacuum tube. Contains hundreds of photos and essential facts to assist in identifying tubes made prior to 1930, and trace s the evolution of tube development with histories of the manufacturers. Truly a classic!

ON REQUEST. DELIVERY TIME BETWEEN 7 TO 31 DAYS.

A high quality reprint of the 1973 RCA Receiving Tube Manual (Technical Series RC-30). Includes tubes not found in RC-19, for example: 6CA7 / EL34, 5AR4 / GZ34, 6DJ8, 6DN7, 6LF6, 6KG6A / EL509, 6550, 7189, 7591 and the 7868 to name a few.

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This revised edition is a step-by-step manual to maintaining and repairing electric or acoustic guitars and basses. Players will master the basic maintenance and set up of a guitar.

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A well organized and easy-to-understand approach to guitar amplifier repair covering basic electronics, reading schematics, understanding tubes and transformers, tube biasing and use of test equipment. Also provides 10 troubleshooting flowcharts, voltage charts for typical amplifiers, and many modifications that you can do yourself.

ON REQUEST! ESTIMATED DELIVERY 5 TO 31 WORKING DAYS.

“Sound Advice from Gerald Weber”

Everything you wanted to ask about Vacuum Tube Guitar Amplifiers. Foreword by Aspen Pittman.

As an advice columnist for over 20 years in three major guitar magazines, Gerald Weber has probably answered more tube amp questions than anyone. In Gerald’s 5th book about Vacuum Tube Amplifiers, he answers over 300 useful questions including:

Page 13 - Understanding Electronic Concepts

Page 109 - Getting Blues Harp tone from any guitar amp

Page 125 - Converting a Bassman to cathode bias

Page 139 - How to re-lacquer a tweed amp

Page 143 - Making a Line out mod for any tube amp

Page 149 - Getting the "Layla" tone from your Tweed Champ

Page 167 - Converting 6L6s to 6V6s on Twin, Showman, Pro or Bandmaster

Page 169 - Output transformer / Speaker deliberate mismatch

Page 178 - Filter Chokes de-mystified

Page 198 - Rewiring a 6SC7 to 12AX7

Page 221 - Negative Feedback Explained

Page 239 - Troubleshooting any reverb circuit

Page 249 - Amp mods for 12-string Electric use

Page 258 - Wiring a switchable tube / solid-state recitifier

Page 260 - Adding a 3-knob reverb on any blackface amp for under $10

Page 272 - Troubleshooting noise, hum and hiss

Page 356 - Diode clipping

Page 394 - Converting 7591A to 6L6

Page 400 - Speaker Codes

Page 416 - Testing a potentiometer for Audio or Linear taper

Page 465 - Reading resistor codes

Page 471 - Calculating resistor wattages

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Guitar Amplifier Design: Tubes and Semiconductors Play Together is a look over the shoulder during the process of designing a unique guitar amplifier. Insights and opinions on design principles and best-practices for getting great tone in any design. Novel approaches and solutions to common circuit-design problems. Performance and tone improvements for common tube circuits. Explanations of cause-effect relationships that lead to better designs and better tone.

Dr. Ulrich Neumann is a professor of Computer Science, with a joint appointment in Electrical Engineering, at the University of Southern California in Los Angeles. He completed a Bachelors and Masters degree in Electrical Engineering from the State University of New York at Buffalo and was granted a computer science Ph.D at the University of North Carolina at Chapel hill. His academic research relates to Computer Graphics and Computer Vision.

He received an NSF CAREER award. He was an Associate Editor for the IEEE Transactions on Multimedia. He Held the Charles Lee Powel Chair of Computer Science and ELectrical Engineering, and was the Director of the Integrated Media Systems Center (IMSC), an NSF Engineering Research Center (ERC). Prof. Neumann teaches classes on Computer Graphics and Music Amplifier Circuits.

In his commercial career, he designed multiprocessor graphics and DSP systems, cofounded three companies, and independently developed and licensed technologies. He is the inventor on six granted US patents.

His musical background is in piano and guitar. He has pursued a passion for amplifiers and music throughout his life and this book reflects his accumulated experience in circuit design and tone shaping. He enjoys playing the amplifiers he builds.

ON REQUEST! ESTIMATED DELIVERY 5 TO 31 WORKING DAYS.

Guitar Amplifier Overdrive: A Visual Tour is an analysis of how tube guitar amplifiers produce their overdrive tones. A visual tour of common tube circuit behaviors. Explanations and illustrations of nonlinear and time-varying circuit behaviors and their impacts on tone.

Dr. Ulrich Neumann is a professor of Computer Science, with a joint appointment in Electrical Engineering, at the University of Southern California in Los Angeles. He completed a Bachelors and Masters degree in Electrical Engineering from the State University of New York at Buffalo and was granted a computer science Ph.D at the University of North Carolina at Chapel hill. His academic research relates to Computer Graphics and Computer Vision.

He received an NSF CAREER award. He was an Associate Editor for the IEEE Transactions on Multimedia. He Held the Charles Lee Powel Chair of Computer Science and Electrical Engineering, and was the Director of the Integrated Media Systems Center (IMSC), an NSF Engineering Research Center (ERC). Prof. Neumann teaches classes on Computer Graphics and Music Amplifier Circuits.

In his commercial career, he designed multiprocessor graphics and DSP systems, cofounded three companies, and independently developed and licensed technologies. He is the inventor on six granted US patents.

His musical background is in piano and guitar. He has pursued a passion for amplifiers and music throughout his life and this book reflects his accumulated experience in circuit design and tone shaping. He enjoys playing the amplifiers he builds.

ON REQUEST! ESTIMATED DELIVERY 5 TO 31 WORKING DAYS.

Gerald Weber's fourth book, All About Vacuum Tube Guitar Amplifiers, draws on his extensive experience as an amp maker, repair tech, and educator, to cover a multitude of things you need to know about maintaining, repairing, and modifying guitar amps. It's the field guide to what makes American and British tube amps tick; so if you worship great tones producted by glowing glass bottles, make this book your bible. - Art Thompson, Guitar Player Magazine

Over 500 pages of all new material not found in Geral Weber's other books, or anywhere else for that matter. Tons of empirical data that de-mystifies the inner workings of tube amps to help you get the most from your amps!

You will learn

how tube amps work

electronic concepts

how different types of tubes work

the anatomy of a gain stage

how to resurrect a dormant tube amp

how to do a cap job correctly

modifications to preserve your amp

how to voice an amp and tune the reverb

how to build an amp

how to recover a cabinet

how to re-grill a baffleboard

how to buy a vintage amp

common wiring mistakes and idiosyncrasies found in vintage amps.

And you get a couple of hundred pages of Questions and Answers – sectioned off into Fender, Gibson, Marshall, Danelectro/Silvertone, Vox, Other American, Other British and Miscellaneous Topics. You will learn the six dreaded tone killers and how to avoid them, the top ten amp-tone tips, and how to fine-tune your entire amp setup. In short, you will have the knowledge needed to squeeze your amp’s performance "from lame to insane."

By Gerald Weber. Foreward by Art Thompson.

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Gerald Weber, of Kendrick amplification fame, is the author of A Desktop Reference of Hip Vintage Guitar Amps and Tube Amp Talk for the Guitarists and tech. This is his third book, and works well as a companion to his previous books or on its own. 528 pages, softbound.

In this, his third book of tube-amp wisdom, Gerald again freely imparts his many years of experience in tweaking amp tone. When it comes to tone, your amp is every bit as important as your guitar, and Gerald gives you the tips and information to get the most from your experience of playing guitar. It's all covered here - troubleshooting, mods, speakers, repairs, parts and everything in between. This book will help you finally achieve the amp ton you've been chasing all these years. - Alan Greenwood, Publisher, Vintage Guitar Magazine

BOOK ON REQUEST! DELIVERY TIME BETWEEN 5 TO 25 DAYS!

The classic Ludwell Sibley book is now available in this wonderful second edition. Tube Lore II contains a wealth of knowledge and information on a wide variety of tube types. Any tube collector or amateur radio will find the contents of this book to be an invaluable reference.

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Already known as the bible of tubes and tube amps, The Tube Amp Book by Aspen Pittman is now even better. This deluxe revised edition features 40% new material including dramatically improved design and page layout. The book's technical tips, in-depth electronic specs and explanations, rare schematics, and full-color plates.

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This book presents vacuum tube amplifier theory using modern, web-based design tools and computer visualizations to eliminate the usual litany of mathematical formulas. The book begins with the fundamentals of electronics and vacuum tubes. It then proceeds through each stage of a modern guitar amplifier, including preamp voltage amplification stages, cathode followers, tone stacks, power amps, phase inverters, and power supplies. The final chapter is devoted to the craft of controlling overdrive dynamics and harmonic distortion.

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Books about guitar amplifier electronics usually focus on individual circuits: preamp stages, tone stacks, phase inverters, the power amp, and power supply. The design of a guitar amplifier as a complete system, however, is more than the natural consequence of putting these pieces together. Fundamentals of Guitar Amplifier System Design presents a structured, top-down approach to crafting a complete guitar amplifier, including:

formulating the concept for a new amp,

evaluating possible features,

setting audio interface signal levels,

laying out a basic architecture,

developing a system-level audio model,

designing individual stages to match the model,

shaping the system's frequency-response profile,

facilitating the evolutionary development of future designs, and

executing a post-design checklist to identify mistakes.

It has been said that the process of guitar amplifier design is like a cooking recipe, like flavors that you are mixing. This book is about mixing these flavors to achieve rewarding sonic results.

Richard Kuehnel is a member of the Circuits and Systems Society of the Institute of Electrical and Electronic Engineers.

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This book is a step-by-step tutorial for simulating vacuum tube guitar amplifiers using LTspice, a free SPICE-based electronic circuit simulator for Windows and macOS. The book walks you through the basics of developing a schematic, setting up a simulation, integrating vacuum tube models, and interpreting the results. From there it gradually ramps up to advanced topics, like verifying the sonic performance of a guitar amplifier as a complete system, analyzing the dynamics of overdrive, and writing new SPICE models for triodes and power tubes. With this book, you will learn how to:

analyze tone-shaping circuits

simulate real-world components

evaluate the performance of a tone stack

compute a power supply's DC output voltage under load

determine the effects of negative feedback for single-ended and push-pull power amps

measure the dynamics of harmonic distortion in preamps and power amps, and

analyze transient behavior when stages are overdriven.

Richard Kuehnel is a member of the Circuits and Systems Society of the Institute of Electrical and Electronic Engineers.

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Many would say the Fender Deluxe design reaches its peak with the narrow-panel 5E3, becoming the ultimate tone machine for public performance and recording. The 5E3 is also the most cloned guitar amp of all time. It has an elegantly straightforward signal chain that maximizes tone and minimizes parts count, making it a favorite for kit makers and kit builders alike. In fact, there is perhaps only one other amp design that can compete with the 5E3 in terms of popularity, particularly among working musicians. Ironically, it also carries the name "Deluxe" - the blackface AB763 Deluxe Reverb.

This book examines both electronic circuits in great depth. The wide panel 5D3 and the brownface 6G3 are also fully explored, because they represent major milestones in the evolutionary development of these iconic amps. From "woody" to blackface, the book explains how these amps work, the motivation behind their system designs, and the performance of their electronics in the context of a real musical performance.

Author: Richard Kuehnel is a member of the Circuits and Systems Society of the Institute of Electrical and Electronic Engineers.

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Fender designed the Bassman in 1952 to be an amplifier for its new Precision Bass. The amp had a 15-inch speaker with a closed back and used a pair of 5881 beam power tetrodes for lots of volume. Throughout the decade it would be modified and improved until culminating in the model 5F6-A.

Ironically it didn't quite make it as a bass amp, but the musical tones it created from a guitar made history. The Bassman's long-tailed-pair phase inverter with negative feedback became the foundation for many great rock and blues sounds. Many other amplifier manufacturers created new Bassman-derived designs that themselves became the legendary instruments of a rock generation. For more than half a century the 5F6-A circuit has been tweaked, enhanced, and re-introduced under many different logos, and the late-1950's original has become one of the most iconic guitar amplifiers of all time.

Fender's product line represents a master class in evolutionary design. For this reason, we begin our circuit exploration with the TV front and wide panel 5B6. We also examine the narrow panel 5E6, 5E6-A, and 5F6, because they are major milestones in the evolutionary development of the 5F6-A. With each model we explain system design concepts, the motivations underlying design changes, stage-by-stage circuit operation, and overall system performance. Analysis includes a stage-by-stage profile of audio signal levels, system voicing, harmonic distortion, intermodulation distortion, and overdrive dynamics.

Author: Richard Kuehnel is a member of the Circuits and Systems Society of the Institute of Electrical and Electronic Engineers.

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When Mike Soldano designed the SLO-100 in 1987 he had no idea that it would transform the guitar amplifier industry, becoming one of the most iconic amps of all time. As we all know now, the SLO became a big hit, particularly in the heavy metal community, backing bands like Dokken, Ratt, and Dio. At Wacken Open Air it is perhaps the ultimate rig-of-death.

This book examines a circa 1996 version of the SLO-100 with an effects loop. The preamp's cascading-gain architecture requires several triodes to implement, but each is dedicated to a pivotal role in the signal chain. With only two channels and a simple switching mechanism, the SLO has a surprisingly compact architecture for creating such a rich palette of tones. The book explains how the amp works, the motivation behind its system design, and the performance of its electronics in the context of a real musical performance.

Richard Kuehnel is a member of the Circuits and Systems Society of the Institute of Electrical and Electronic Engineers.

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For seasoned veterans of guitar amp design, this book skips lengthy explanations and focuses on concisely stating the necessary procedures and formulas to design specific circuits, starting with 24 steps to design a fixed-bias voltage amplifier and ending with 9 steps to design a solid-state DC power supply. Each circuit includes the prerequisite information required for its design, a list of procedures with required formulass, and at least one example to demonstrate each step.

Inside, you'll find step-by-step recipes for designing.

triode and pentode voltage amplifiers

voltage amplifiers with parallel triodes

tone stacks tailored to your circuit's requirements, including insertion loss, knob count, and the required driving circuit

split-load and long-tailed-pair phase inverters

single-ended and push-pull power amplifiers, including negative feedback implementations

vacuum-tube and solid-state DC power supplies

Get ready to streamline your process and produce extraordinary results!

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Building your own vacuum tube guitar or bass amplifier from scratch is truly an exciting experience. This book describes the detailed construction of five vacuum tube amplifiers. The construction of these amplifiers is described in full detail with chassis drilling templates, component installation, wire-by-wire hook-ups and schematics.

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The follow up to Volume 1 and 2 in the series, covering advanced amplifier construction projects for the experienced builder.

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The follow up to Volume 1 in the series, covering more advanced amplifier construction projects for the experienced builder. Includes detailed plans for the following five classic tube amplifiers.